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Fair Value (Details) € in Millions, $ in Millions |  | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 30, 2016 USD ($) | Jun. 30, 2018 USD ($) | Dec. 31, 2016 USD ($) | Apr. 02, 2016 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2018 EUR (€) | Jan. 01, 2018 USD ($) | Dec. 30, 2016 EUR (€)
Assets and liabilities measured at fair value on a recurring basis |  |  |  |  |  |  |  |  |  |
Gain (loss) on sale of business, net of tax |  |  |  |  | $ 3.0 | $ 5.3 | $ (81.3) |  |  |
Equity security, cost |  |  |  |  |  | $ 0.7 |  |  |  |
Equity security, fair value |  |  |  |  |  |  |  |  | $ 16.6 |
SPX Heat Transfer Business |  |  |  |  |  |  |  |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |  |  |  |  |  |  |  |
Impairment charge |  |  | $ 23.9 |  |  |  |  |  |  |
SPX Heat Transfer Business | Trademarks |  |  |  |  |  |  |  |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |  |  |  |  |  |  |  |
Impairment charge related to trademarks |  |  | $ 2.2 | $ 4.0 |  |  | $ 30.1 |  |  |
Balcke Durr |  |  |  |  |  |  |  |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |  |  |  |  |  |  |  |
Gain (loss) on sale of business, net of tax |  | $ 3.8 |  |  |  |  |  |  |  |
Discontinued Operations, Disposed of by Sale | Balcke Durr |  |  |  |  |  |  |  |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |  |  |  |  |  |  |  |
Gain (loss) on sale of business, net of tax |  | $ 3.8 |  |  |  |  |  |  |  |
Discontinued Operations, Disposed of by Sale | SPXC | Indemnification Agreement | mutares AG | Balcke Durr |  |  |  |  |  |  |  |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |  |  |  |  |  |  |  |
Amount of guarantees | € |  |  |  |  |  |  |  | € 5.0 |  | € 5.0
Discontinued Operations, Disposed of by Sale | Subsidiary of mutares AG (the Buyer) | Balcke Durr |  |  |  |  |  |  |  |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |  |  |  |  |  |  |  |
Amount of guarantees | € |  |  |  |  |  |  |  | 31.7 |  | 79.0
Gain (loss) on sale of business, net of tax | $ (78.6) |  |  |  |  |  |  |  |  |
Discontinued Operations, Disposed of by Sale | Subsidiary of mutares AG (the Buyer) | Balcke-Durr GmbH | Balcke Durr |  |  |  |  |  |  |  |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |  |  |  |  |  |  |  |
Cash collateral | € |  |  |  |  |  |  |  | 3.0 |  | 4.0
Discontinued Operations, Disposed of by Sale | Subsidiary of mutares AG (the Buyer) | Bank and Surety Bonds | Balcke Durr |  |  |  |  |  |  |  |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |  |  |  |  |  |  |  |
Amount of guarantees | € |  |  |  |  |  |  |  | € 21.8 |  | € 79.0
Discontinued Operations, Disposed of by Sale | Subsidiary of mutares AG (the Buyer) | Guarantees and Bonds | Balcke Durr |  |  |  |  |  |  |  |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |  |  |  |  |  |  |  |
Gain (loss) on sale of business, net of tax | $ (5.1) |  |  |  |  |  |  |  |  |
Accounting Standards Update 2016-01 |  |  |  |  |  |  |  |  |  |
Assets and liabilities measured at fair value on a recurring basis |  |  |  |  |  |  |  |  |  |
Impact of adoption of ASU Adoption |  |  |  |  |  |  |  |  | $ 12.0 |

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